"use strict";


function test(){
  console.log("ok");
}

test();

var bak = test;
console.log(bak);

var test = function(){
  console.log("changed");
  bak();
}

test();

class A{
  test:function(){
    console.log("a");
  }
}

console.log(A);
var aa = new A;
aa.test();
